Adafruit feather main boards adafruit 2821 the adafruit feather huzzah with esp8266 wifi uses the internet of things chip of choice the esp8266 running at 80mhz and with arduino ide compatibility adafruit have teamed up this popular chip with a cp2104 usb serial chip allowing you to upload code at an amazing 921600 baud plus it also handles the auto reset to keep the bootloader happy the esp8266 has 4mbytes of flash memory 9 x gpio pins 1 x analogue input 10v max new to feather ad